Roof waterproofing usually takes 3-7 days, depending on the size of the roof and the scope of the work. For an average flat roof (approx. 100-150 m²) in Torrevieja, Denia, or Alicante, we usually plan around 4-5 days. This includes preparation and cleaning (1 day), waterproofing work (2-3 days), and final work (1 day). For larger roofs or special requirements such as pitched roof waterproofing, the duration may be longer accordingly. Before starting, we provide you with a detailed schedule so you know exactly when each task will take place. Important: The waterproofing requires dry weather, so the timeframe may be extended in case of rain.

The cost of roof waterproofing in Torrevieja, Dénia, Alicante, and across the Costa Blanca depends on the selected system, the condition of the substrate, and the size of the area.

As a rough guideline, the following price ranges apply for flat roofs:

• Bitumen waterproofing: approx. €40–60 per m²
• Liquid waterproofing: approx. €25–130 per m²
• EPDM membrane: approx. €60–100 per m²

With liquid waterproofing, one must distinguish between a simple coating that is applied over an existing surface and a high-quality liquid plastic waterproofing system with fleece reinforcement. The latter is more demanding in terms of materials and workmanship, but offers significantly better crack-bridging, UV resistance, and durability – especially for the climate on the Costa Blanca.

For a 70 m² tiled flat roof that is newly waterproofed with liquid plastic, the cost is generally around €1,800.

We prepare a fixed, individual quote for every project with no hidden costs. This includes:

• all preparatory work
• the waterproofing system
• professional installation
• as well as all connections and detail work

The material costs are broken down transparently, so you can decide yourself on the quality level and price range.

Bitumen waterproofing consists of bitumen membranes that are glued or welded onto the roof. It is very robust, durable (20-30 years), and cost-effective. Liquid waterproofing is applied as a liquid resin and forms a seamless, elastic layer. It is more flexible, adapts to movement, and is ideal for complex shapes. Liquid waterproofing is slightly more expensive, but very watertight and low-maintenance. The choice depends on the roof shape, budget, and requirements. We are happy to advise you on the right option in Torrevieja, Denia, or Alicante. Both systems are installed professionally to German standards and provide long-term protection against moisture.

Negative-side waterproofing is waterproofing applied from the inside (from the room side), when exterior waterproofing is not possible or would be too complex. It is often used for basements when the masonry cannot be accessed from the outside or when retrofitting exterior waterproofing would be too expensive. Negative-side waterproofing is applied from the inside using special sealing slurries or waterproof membranes. Important: It does protect against penetrating moisture, but can be less effective than exterior waterproofing under heavy hydrostatic pressure. Before starting, we analyze the situation in Torrevieja, Denia, or Alicante and recommend the best solution. Costs are around €30–50 per m², depending on materials and effort.

Balcony or terrace waterproofing in Torrevieja, Denia, or Alicante is built up in several layers: substrate preparation (cleaning, repairs), primer, waterproof membrane or liquid waterproofing, protective layer, and then the desired finish (tiles, natural stone, etc.). It is important that the waterproofing is taken up the wall (at least 15 cm) and that all connections are sealed perfectly. We use only high-quality waterproofing materials that withstand Spanish weather conditions. Costs are around €25–130 per m², including materials and installation. Waterproofing is essential to prevent moisture damage in the rooms below.

Moisture damage repair in Torrevieja, Denia, or Alicante includes several steps: cause analysis (where is the moisture coming from?), drying measures (removal of wet materials, drying), waterproofing work (eliminating the cause), restoration of the affected areas (plaster, masonry, etc.), and preventive measures. Causes may include: leaking roofs, rising damp, penetrating water, condensation, or defective pipes. Before starting, we analyze all causes and create an individual repair plan. Costs vary greatly depending on the scope: simple repairs from €2,000, extensive repairs €10,000–30,000 or more. We provide you with a detailed quote after the analysis.

The lifespan of roof waterproofing depends on the material and the quality of installation. Bitumen waterproofing lasts 20-30 years when installed properly, liquid waterproofing 15-25 years, EPDM membrane 30-50 years. Regular maintenance and inspection are important to detect and repair small defects early. We use only high-quality materials from reputable manufacturers, professionally installed in Torrevieja, Denia, or Alicante. All work is documented, and we provide a guarantee on our waterproofing work. With regular maintenance and professional installation, you can live worry-free for many years. We are happy to advise you on maintenance intervals and inspections.

We work exclusively with fixed prices for your waterproofing project in Torrevieja, Denia, Alicante, or anywhere on the Costa Blanca. Before we begin, you receive a detailed written quote with a fixed total price. This includes all work, materials (unless you choose premium options), and all services. No hidden costs, no extra charges, no surprises. The fixed price applies to the scope described in the quote. Changes during the work are quoted separately and only carried out after your approval. Payment is made in installments: deposit upon placing the order, further payments after completion of certain construction phases (e.g. after preparatory work, after waterproofing work), final payment after final handover. This gives you full cost control and planning reliability.